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Transcript
Energy
Mr. Medler
Website: www.cmedler.weebly.com
Email:[email protected]
Name: ___________________________________________ Period: ___________
Lab Activities
Starter Questions
Score
/ ___
Vocabulary
Day 1: Energy PPT
Day 2: Energy Transfer PPT
Energy Transfer Scenarios
Day 3: Energy Transfer Lab
Day 4: Heat PPT
Total:
1
Starter Questions:
Day 2
Day 3
Day 4
Day 5
2
Unit Vocabulary:
From your notes, define the following terms
1. Word: Energy
Definition:
__________________________________________________________________________________________
__________________________________________________________________________________________
__
2. Word: Potential Energy
Definition:
__________________________________________________________________________________________
__________________________________________________________________________________________
__
3. Word: Kinetic Energy
Definition:
__________________________________________________________________________________________
__________________________________________________________________________________________
__
4. Word: Mechanical Energy
Drawing
Definition:
__________________________________________________________________________________________
_______________________________________________________________________________
Examples:
__________________________________________________________________________________________
________________________________________________________________________________
5. Word: Gravitational Energy (Potential & Kinetic)
Drawing
Definition:
__________________________________________________________________________________________
__________________________________________________________________
Example:
3
__________________________________________________________________________________________
__________________________________________________________________
6. Word: Elastic Energy
Drawing
Definition:
__________________________________________________________________________________________
__________________________________________________________________
Examples:
__________________________________________________________________________________________
__________________________________________________________________
7. Word: Sound
Drawing
Definition:
__________________________________________________________________________________________
__________________________________________________________________
Examples:
__________________________________________________________________________________________
__________________________________________________________________
8. Word: Heat
Drawing
Definition:
__________________________________________________________________________________________
_______________________________________________________________________________
Examples:
__________________________________________________________________________________________
________________________________________________________________________________
9. Word: Electromagnetic (Light) Energy
Drawing
Definition:
__________________________________________________________________________________________
__________________________________________________________________
Spectrum Examples:
__________________________________________________________________________________________
__________________________________________________________________
4
10. Word: Chemical Energy
Drawing
Definition:
__________________________________________________________________________________________
__________________________________________________________________
Examples:
__________________________________________________________________________________________
__________________________________________________________________
11. Word: Electrical Energy
Drawing
Definition:
__________________________________________________________________________________________
__________________________________________________________________
Example:
__________________________________________________________________________________________
__________________________________________________________________
12. Word: Nuclear
Drawing
Definition:
__________________________________________________________________________________________
_______________________________________________________________________________
Examples:
__________________________________________________________________________________________
________________________________________________________________________________
Energy Acronym:
__________________________________________________________
5
13. Word: Conduction
Drawing
Definition:
__________________________________________________________________________________________
_______________________________________________________________________________
Examples:
__________________________________________________________________________________________
________________________________________________________________________________
14. Word: Convection
Drawing
Definition:
__________________________________________________________________________________________
_______________________________________________________________________________
Examples:
__________________________________________________________________________________________
________________________________________________________________________________
15. Word: Radiation
Drawing
Definition:
__________________________________________________________________________________________
_______________________________________________________________________________
Examples:
__________________________________________________________________________________________
________________________________________________________________________________
6
Day 1: Energy PPT
1. What does it mean when we say someone has a lot of energy?
2. What is Work?
Potential
3. What is Energy?
4. What is Kinetic Energy? (Diagram it)
5. What is Potential Energy? (Diagram it)
Energy at the Large Level:
6. What is Mechanical Energy?
7. What are the three forms of Mechanical Energy?
8. What is Gravitational Potential Energy – and how does it work? (Diagram it)
9. What is Elastic Potential Energy – and how does it work? (Diagram it)
10. What is Sound Energy – and how does it work? (Diagram it)
Energy at the Atomic Level:
11. What is Heat or Thermal energy – and how does it work? (Diagram it)
7
Kinetic
12. What part of the atom is moving?
13. What is Electromagnetic Energy – and how does it work? (Diagram it)
14. How does that influence other charged atomic particles?
15. What are some examples of Electromagnetic Energy?
16. What is Chemical Energy – and how does it work? (Diagram it)
17. What are some examples of Chemical Energy?
18. What is Electrical Energy – how does it work?
19. What part of the atom is moving?
20. What is Nuclear Energy – how does it work?
21. What part of the atom stores nuclear energy?
8
Day 2: Energy Transfer PPT:
1. What is the second definition for work?
2. How will this relate to today’s topic of energy transfer?
3. What are the three main concepts of Transfer?
a. There is a ________________ amount of energy in the universe
b. All energy is ______________________. It’s neither ______________________
or ______________________
c. ________________ forms of energy are ________________________
4. What is usually a bi-product of energy transfer?
5. What does it mean that all forms of energy are transferable?
6. On the diagrams below – identify the highest potential energy and the highest kinetic energy.
7. If energy is not destroyed, what happens to all of the energy when the ball hits the ground?
8. What happens when objects collide?
9. How does friction turn mechanical energy into heat?
10. What are the three modes of heat transfer?
11. List the sequence of energy transformations for the following scenarios:
Life Sustaining Energy:
9
Core of Sun  Outside of sun (travels through space)  Plant Leaves/Food  Meat from cow  We
eat it and we move.
___________  __________ & __________  __________  __________  __________ &
___________
Electrical Energy:
1. Core of Sun  2. Outside of sun (travels through space)  3. Warms up the ground  4. Causes
water to evaporate and rise in the sky  5. Rain water  6. Water stored behind a dam  7. Water
rushes through a tunnel  8. water turns a turbine  9. This energy flows through the wires in a
power line  10. light bulb.
___________  __________  __________  __________  __________  __________ 
___________  __________  __________  __________  __________  __________ 
Notes:
10
Energy Transfer Scenarios
1. Match Stick → Flame
____________ → ___________ + ____________
2. Sun → What the sun gives off → energy stored in plants/fruits/vegetables → (We eat it and we
...) run → reason for sweating
_________ → __________ + __________ → __________ → __________ + __________
3. Water stored behind a dam → Water running through the dam → Turning a generator → Power
Lines → Light Bulb
_________ → __________ → __________ → __________ → __________ + __________
4. Battery Acid → Wires in a toy car → Moving Toy Car
_________ → __________ → __________
5. Coal → Burning the coal (to convert water into Steam) → Turns a generator → Power Lines →
Stereo Playing Music
_________ → __________ + __________ → __________ → __________ → __________
6. Food → Walking
_________ → __________
7. Candle Wax → Fire
_________ → __________ + __________
8. Powered Radio Station → Radio Waves → Circuitry in a Stereo → Speakers
_________ → __________ → _________ → __________
9. Sun → What the sun gives off → Ground getting warm
_________ → __________ + ___________ → ___________
10. Battery Acid → Circuitry in TV Remote → IR Signal from Remote Control
_________ → __________ → ____________
11
Energy is the ability to move stuff – or do work. We have even discussed in class different forms of
energy – particularly Gravitational Potential Energy.
Question: What variables affect Gravitational Potential Energy (GPE)?
Question 1: Does the height of marble affect the distance a cup will travel?
Hypothesis: (Since the question is a yes or no response – please elaborate and explain).
/
1. If I increase the height of the ramp, then the cup will… (because)…
Lab Setup Questions:
1. Identify the Independent Variable in this experiment:
________________________
2. Identify the Dependent Variable in this experiment:
________________________
Data Table:
Trial
Height of
High Setting
Distance the Cup
Traveled
Height of
Low Setting
Distance the Cup
Traveled
1
2
3
Average
Average
Data Analysis:
3. Which height setting moved the cup the most?
4. Which height setting has more energy?
_______________________
_______________________
12
Question 2: Does the mass of a marble affect the distance a cup will travel?
Hypothesis: (Since the question is a yes or no response – please elaborate and explain).
5. If I increase the mass of the marble, then the cup will… (because)…
Lab Setup Questions:
6. Identify the Independent Variable in this experiment:
________________________
7. Identify the Dependent Variable in this experiment:
________________________
Data Table:
Trial
Mass of the
Large Marble
Distance the Cup
Traveled
Mass of the
Small Marble
Distance the Cup
Traveled
1
2
3
Average
Average
Data Analysis:
8. Which mass setting moved the cup the most?
9. Which mass setting has more energy?
_______________________
_______________________
10. Explain why we are concerned with moving the cup in this experiment? How is that an
indicator of energy?
Conclusion:
11. Which variables are associated with Gravitational Potential Energy?
13
12. Write a flow chart indicating the conversion of energy from when the ball is placed at the top to
the moment it starts going down the ramp.
Top of the ramp 
3 energies that come out as it goes down the ramp
(Hint: Listen… friction causes… & it’s moving)
 The moving of the cup
______________  _____________ & ______________ & ____________  _____________
Additional Notes
14
Heat Transfer PPT
Part 1: Direction of Heat Transfer:
1. What would you predict would happen to the temperature of the hot cup of coco?
2. What would you predict would happen to the temperature of the ice cubes?
3. Which direction does heat energy flow? Hot to Cold, or Cold to Hot? (1)
a. Draw the arrows depicting the flow of heat energy: (1)
4. What are the three modes of heat transfer?
a.
b.
6. ConDUction Diagram
c.
Part 2: Conduction: Heat Transfer through touch.
5. How does heat transfer through conduction?
6. Draw & explain how conduction works?
Part 3: Convection: Heat Transfer through circular motion of fluid
7. How does heat transfer through convection?
10. ConVection Diagram
8. Why do hot fluids rise?
9. Why do cold fluids sink?
10. Draw a diagram and illustrating how convection cycles work.
Part 4: Radiation: Heat Transfer through light
11. How does heat transfer through radiation?
13. Radiation Diagram
12. How does the heat get from the sun to the earth when we
aren’t touching it and there are no fluids for convection?
13. Draw how does radiation keep our planet warm?
15